As the old man's words landed, a large group of people immediately walked towards the stage, and a large area of the originally crowded crowd around them was vacated.

The test of the first level is very simple, which is to refine the refining materials.

On a small table in front of each person was a piece of iron ore the size of a human head, which was very common and was usually used to forge agricultural tools.

If ninety percent of the impurities in the ore are extracted, then they can be used to craft weapons.

If it is refined on this basis, it can be used as a material for high-grade mortal soldiers.

"The first level, refining iron ore. There is no restriction on the method, and the volume of iron ore can be reduced by 50% in a stick of incense. ”

"Let's get started!"

After the old man finished speaking, the guard next to him took out an incense stick and lit it.

There are many ways to refine materials, such as fire refining, water refining, sand refining, etc., and the development of various schools has led to different refining steps.

There is no need to explain much about fire refining, which is to burn with a flame and burn all the impurities into powder. The advantage of this is that it is simple and crude, and the disadvantage is that some materials will be burned together with impurities, and the impurities that are burned into powder are difficult to discharge.

Water refining is more complicated than fire refining, and cleaning with water flow or other prepared liquids is generally a highly corrosive substance. The advantage is that the impurities are cleaned relatively cleanly, and the disadvantage is that it is easy to generate new impurities.

Sand refining is actually a forging method in ancient China, which adds carbon or other substances to the material for forging, replaces the impurities inside, and cooperates with the added things to greatly improve the hardness and toughness of the material.

These three methods are the most used and the most widely used.

Many alchemists learn all three methods, changing the way they are based on the type of material.

Lu Chuan glanced at the stage and found that the most used was fire refining.

In fact, it is normal to say that the fire refining is too simple and crude, and the higher the flame temperature, the simpler the process.

If you have a powerful flame, even someone who doesn't know anything about refining weapons can refine the materials well.

The time for a stick of incense ended quickly, and although the difficulty of the first level was not great, it still screened out more than ninety percent of the bastards.

Iron ore the size of a human head smelts half of the volume, this test is actually very simple, the main reason is that the time is too short.

"The three thousand and one to the sixth thousand, come to the stage!"

The old man shouted with a loudspeaker, and Lu Chuan came to the stage.

Unlike others, the refining method used by Lu Chuan was neither fire refining, nor water refining, nor sand refining, but an extremely clever soul refining.

As the name suggests, it is to refine with the power of the soul.

Sink your soul power directly into the material and bring out all the impurities.

This method can be said to be the most clever method at present, but the requirements for the soul are too high.

A ninth-level cultivator in the Qi Refining Stage could barely do it, but after refining the materials once, he needed to rest for a long time.

Only monks who have reached the stage of incarnation can do this relatively easily.

"It turned out to be that kid......"

On the stands, Master Hong actually recognized Lu Chuan.

"At this level, you still dare to come to the refining conference, it's embarrassing!"

Master Hong snorted coldly, his face full of disdain.

This method of soul refining is too high-end, and it is not something that ordinary people can understand.

In the eyes of Master Hong, Lu Chuan was holding a piece of iron ore the size of a human head in a daze at this time, and he thought he had accepted his fate if he didn't know.

"You know him?"

The old man who presided over glanced at Master Hong, and his expression was very indifferent.

In fact, a person like Master Hong is not qualified to talk to him, but at this time, he is idle, so the old man asked casually.

"Two months ago, he forced his way through the gate of the Alchemist Federation and was stopped by two guards. I scolded him, I thought he would make a move, but I didn't expect it to be a pustule and walked away. Master Ma, do you know this person?"

Master Hong said cautiously, and his heart suddenly lifted.

Because he found that there was a hint of mockery in Master Ma's eyes when he looked at him, as if he was looking at a fool.

"I don't know him, but I know you're in trouble, and it's still a big problem. ”

Master Ma smiled, the mockery on his face undisguised.

"Big trouble? Just by him? A third of the incense has been burned, and he is still holding that piece of iron ore in a daze, and he still wants to trouble me with such goods?"

Master Hong was very unconvinced, and defended in a low voice.

"Daze? Take a closer look, is that piece of ore much smaller?"

Master Ma pointed in the direction of Lu Chuan and said.

As his words came out, several other refiners around him also turned their heads to look.

It doesn't matter if you don't look at it, immediately after watching it, there is a series of gasps.

I saw that the ore in Lu Chuan's hand, which was originally the size of a human head, turned around at some point, half of it shrank to the size of a fist, and the other half remained the same.

"This ...... This ......"

A group of refiners were dumbfounded, not knowing what was happening.

"Master Ma, what the hell is going on? A new way of refining?"

Someone couldn't help it and asked.

"This is called soul refining, and it is not a new method of refining. ”

Master Ma stroked his beard and continued: "The so-called soul refining is actually to use soul power to extract the impurities in the material. This is the perfect way to refine and even remove all impurities from the material. However, soul refining has very high requirements for soul power, and at worst, it can only be achieved at the ninth level of the qi refining period. This kid's cultivation is only at the third level of the Qi refining period, he should be talented, and his soul is naturally stronger than others. ”

"I see! There is such a perfect method in this world!"

All the refiners took a deep breath, and they all stared at Lu Chuan without blinking, wanting to see some clues from it.

It's a pity that soul refining is simpler than fire refining, just like reaching into a bowl and pinching peanuts, there is no technical content at all.

These refiners didn't see a reason after looking at it for a long time, but their evaluation of Lu Chuan in their hearts suddenly rose a lot.

Master Ma knew what these refiners were thinking, but he didn't explain it.

This method of soul refining will naturally be understood when the cultivation is reached, and even if the cultivation is insufficient, it is useless even if it is understood.

Master Ma's face was indifferent, the other refiners had serious faces, and Master Hong was like a dead father.

No matter what the reason for the incident two months ago, it is an indisputable fact that he blasted Lu Chuan out and put him on the blacklist.

In addition, he also sneered at Lu Chuan, scolding the other party for being a brute.

If Lu Chuan is that kind of atmospheric person, it's okay, and he won't bother with a little person like him.

But how many people can be there who don't care about being scolded for being brutes?

Treat others with yourself, Master Hong can't do it anyway.